Who has been buying Sek stock?

1 distinct insiders have filed 0 disclosed insider purchases in Sek (081180), most recently on 2025-11-24. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.

How many insider filings does Sek have?

Sek has 0 buy-side and 3 sell-side disclosures on record, covering ₩9.6B ($6.7M) in total reported value, spanning 2025-04-28 to 2025-11-24.

Do insider buys in Korean stocks predict returns?

Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

Sek 081180

Company

쎄크Sek

Insiders

Buys

Total Value

₩9.6B ($6.7M)

Avg Return

-17.26%

Last Filing

2025-11-24

Sek (081180) has 0 disclosed insider purchases and 3 disclosed disposals on record, filed by 1 distinct insiders. Together those filings cover ₩9.6B ($6.7M) in reported transaction value. The earliest filing StockDrifts holds for Sek is dated 2025-04-28; the most recent is 2025-11-24. Across these filings the average return since disclosure is -17.26%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent insider trades

Date	Type	Source	Insider	Position	Shares	Price at filing	Return	Value
2025-11-24	SELL	Market Sell	원익뉴그로쓰2020사모투자 Wonik New Growth 2020 Private Equity Investment	-	-449.0K	₩11,310	-21.3%	₩5.1B ($3.5M)
2025-11-18	SELL	Market Sell	원익뉴그로쓰2020사모투자 Wonik New Growth 2020 Private Equity Investment	-	-393.6K	₩11,070	-23.9%	₩4.4B ($3.0M)
2025-05-28	SELL	Market Sell	원익뉴그로쓰2020사모투자 Wonik New Growth 2020 Private Equity Investment	-	-13.1K	₩12,880	-6.5%	₩168M ($117K)
2025-04-28	BUY	PROGRAM	김만석 Manseok Kim	Managing Director	20.0K	₩13,680	+0.3%	₩274M ($190K)
2025-04-28	BUY	PROGRAM	안준호 Junho Ahn	Managing Director	25.0K	₩13,680	+0.3%	₩342M ($238K)
2025-04-28	BUY	PROGRAM	황의조 Hwang Ui-jo	Managing Director	20.0K	₩13,680	+0.3%	₩274M ($190K)
2025-04-28	BUY	PROGRAM	김종현 Jonghyun Kim	CEO	1.2M	₩13,680	+0.3%	₩16.1B ($11.2M)
2025-04-28	BUY	PROGRAM	김영만 Youngman Kim	Managing Director	42.9K	₩13,680	+0.3%	₩587M ($408K)
2025-04-28	BUY	PROGRAM	이장근 Jang Geun Lee	Managing Director	20.0K	₩13,680	+0.3%	₩274M ($190K)
2025-04-28	BUY	신규상장	원익뉴그로쓰2020사모투자 Wonik New Growth 2020 Private Equity Investment	-	1.6M	₩13,680	+0.3%	₩22.3B ($15.5M)
2025-04-28	BUY	PROGRAM	고기철 meat season	Managing Director	25.0K	₩13,680	+0.3%	₩342M ($238K)

Frequently asked questions

Who has been buying Sek stock?: 1 distinct insiders have filed 0 disclosed insider purchases in Sek (081180), most recently on 2025-11-24. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does Sek have?: Sek has 0 buy-side and 3 sell-side disclosures on record, covering ₩9.6B ($6.7M) in total reported value, spanning 2025-04-28 to 2025-11-24.
Do insider buys in Korean stocks predict returns?: Not uniformly. StockDrifts analysed 170,720 share-count changes across 56,930 Korean regulatory filings using cross-sectional alpha at fixed forward horizons, and found returns concentrated in particular signal tiers rather than in insider buying generally.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Korea insider signal tier research, or browse every Korean stock we track.